What's going on here

My bf and I are not ttc but we are not preventing anything either, a few days ago I got a positive pregnancy test at home with fmu but also got negative tests too I went for blood work to confirm and it turns out I am not pregnant, The dr said something is going on to give me a positive test( multiple) plus other symptoms and I am going for a fasting blood work tomorow morning and again in one week follows by a full exam, 
​In late February my nipples were leaking after sex( tmi- they leaked for days, like lactation enough for then crust over and stick to my bra and I had to peel it off) 
​Last month(May) I went to the Er for the worst period I've ever had, woke up the day of af to a gush of blood, like my water broke, passing clots off and on for days the size of a lemon, they said there was nothing going on, by the time I got someone to take my kids so I could get to the Er the bleeding had slowed way way down to a normal amount 
​I was on the depot shot for one year and it ended march 17, 2013 
​Anyone kbow what's going on? Or have this happen to then? The dr is doing pre testing before I see him so I won't have any answers until July 8